User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:69.0) Gecko/20100101 Firefox/69.0

Steps to reproduce:

Open discordapp.com and join a voice chat.
NOTE: Closing firefox nightly and re-opening it causes things to go back to normal.

Actual results:

Every tooltip from chromeui after that opens in it's own sway container (a new window). Awesomebar/Quantumbar dropdown becomes unresponsive and causes screen flickering when attempting to open it. Letters entered in website's input boxes flicker the screen and reset the input box (only one letter at a time).

NOTE: This does not happen in firefox 66.0.5, 67.0.1, firefox developer edition 68.0b7 (nightly regression?)

Expected results:

Tooltips should not open new windows and instead be displayed over the respective ui element that was hovered to generate the tooltip. Aweomebar/Quantumbar should work normally. Website Input elements shouldn't flicker the screen and allow more than a single letter entries.

To add to this:
sway and wlroots are built from git
MOZ_WEBRENDER and MOZ_ENABLE_WAYLAND variable flipping seems irrelevant to reproduce the bug (no matter which combination these are set to, it's enough to just join a voice chat on discord)

Refreshing the profile fixed it. Must've been something on my end. Sorry for the noise